Was there a circle spray-painted around the pot-hole?
I'm sure there was a thread on here before about them, which said the councils basically have two answers to pot-hole claims. If it does have a circle round it, then they know about it and it'll be fixed as soon as possible but its not they're fault you've been unlucky and hit it before they could fix it, and if it isn't circled, then they haven't been notified about it so it can't possibly be their fault.